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Fix response rates for small schools by accounting for expected minimum counts of responses less than 10

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rebuilt 2023-05-12 12:27:00 -07:00
parent b5be86d74d
commit 3c30808a5e
2 changed files with 7 additions and 3 deletions
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5
app/models/student_response_rate_calculator.rb
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@ -28,11 +28,14 @@ class StudentResponseRateCalculator < ResponseRateCalculator
end
def survey_items_with_sufficient_responses(grade:)
threshold = 10
quarter_of_grade = enrollment_by_grade[grade] / 4
threshold = threshold > quarter_of_grade ? quarter_of_grade : threshold
SurveyItem.joins('inner join survey_item_responses on survey_item_responses.survey_item_id = survey_items.id')
.student_survey_items
.where("survey_item_responses.school": school, "survey_item_responses.academic_year": academic_year, "survey_item_responses.grade": grade, "survey_item_responses.survey_item_id": subcategory.survey_items.student_survey_items)
.group('survey_items.id')
.having('count(*) >= 10')
.having("count(*) >= #{threshold}")
.count
end